The comparison is somewhat skewed, since they went from an (expensive) virtual server to a cheaper dedicated server (hardware).

One of the new risks is if anything critical happens with the hardware, network, switch etc. then everything is down, until someone at Hetzner go fixes it.

With a virtual server it’ll just get started on a different server straight away. Usually hypervisors also has 2 or more network connections etc.

And hopefully they also got some backup setup.

It’s still a huge amount of of savings and I’d probably do the same of I were in their shoes, but there is tradeoffs when going from virtual- to dedicated hardware.